Conjectures Hespecting the Norlh West Winds. Gl 



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entirely free from any symptoms of liis former complaints; 

 and had enjoyed a better state of health than he had for sev- 

 eral years before. As ' he nsed little or no medicine after 

 drinking the waters^ I think we may justly conclude that the 



acrimony^ which for two years had rendered his life misera- 

 ble, was eradicated Ibj them alone. The pulmonick patient 

 hkewise, whose case is there mentioned, continued in good 

 health. S. TENXEY. 



Dr. Joshua Fisher, f. a. a. 



III. Conjectures of the Natural Causes of the NoHh West Winds 



leing Colder, and more frcqimit in the Winter in New Eng- 

 land, than in the same Degrees of Zatitude in Europe, ly 



SAMUEL HALE, Esq. of Portsmouth, f. a. a. 

 HE attraction of the Moon and Sun makes the cur- 

 rent of air and water, on the globe, move continually 

 towards the west, between the tropicks; unless where ob- 

 structed by land, high mountains, &c. which causes an ed- 



+ 



dy, both in the air and water, in a contrary course be- 

 3-ond the tropicks. And we actually find the gulf stream to 

 be a very strong current, reaching from Cape Florida, along 

 the shore, at unequal distances therefrom, to the Isle of Sable, 

 and Grand Bank. And it is highly probable, that the sand 

 carried by this stream, together with the sand carried down 

 by great rivers into bays, and the current out of those bays 

 meeting with the gulf stream, by their eddies, have made 

 Nantucket Shoals, Cape Cod, George's Bank, Cape Sable 

 Bank, the Isle of Sable, &c. But to return: the wind, 

 which being mostly westerly beyond the tropicks, as an eddy 



^to the tradewind, by passing along upon the tops of the 



the 



